Abstract: Method and server system for user login verification are disclosed. The method includes: obtaining a verification request from a first device for an account operation requested by a user using a first account; identifying, from the server system, usage history data associated with the first account, including data regarding usage of the first account on the first device; determining, in accordance with the data regarding the usage of the first account on the first device and one or more predetermined usage history criteria, whether the account operation associated with the first account on the first device is safe; and in accordance with a determination that the account operation associated with the first account on the first device is not safe, initiating a verification process based on a second device that qualifies as being safe for the account operation.

Abstract: A method and a device are provided for inputting account information in the field of Internet communications. The method includes: obtaining user account information included in a first application; obtaining an information type of a form element included in a form of a second application; determining account information corresponding to the form element according to the information type of the form element and the user account information; and automatically inputting the account information corresponding to the form element to the form element. The device includes a processor and a non-transitory storage medium, which includes: a first obtaining module, a second obtaining module, a determining module, and an inputting module.

Abstract: Method and server system for user login verification are disclosed. The method includes: obtaining a verification request from a first device for an account operation requested by a user using a first account; identifying, from the server system, usage history data associated with the first account, including data regarding usage of the first account on the first device; determining, in accordance with the data regarding the usage of the first account on the first device and one or more predetermined usage history criteria, whether the account operation associated with the first account on the first device is safe; and in accordance with a determination that the account operation associated with the first account on the first device is not safe, initiating a verification process based on a second device that qualifies as being safe for the account operation.

Abstract: Method and server system for user login verification are disclosed. The method includes: obtaining a verification request from a first device for an account operation requested by a user using a first account; identifying, from the server system, usage history data associated with the first account, including data regarding usage of the first account on the first device; determining, in accordance with the data regarding the usage of the first account on the first device and one or more predetermined usage history criteria, whether the account operation associated with the first account on the first device is safe; and in accordance with a determination that the account operation associated with the first account on the first device is not safe, initiating a verification process based on a second device that qualifies as being safe for the account operation.

Abstract: A device may include a storage medium and a processor. The processor may execute a set of instructions in the storage medium to: provide a first platform; provide a first user account registered in the first platform to a user; access, through the first user account, a second user account of the user registered in a second platform; obtain, from the second user account, a communication log of the second user account; obtain an address list from the second user account; obtain a plurality of contacts from the second user account who have a prior communication with the user through the second user account based on the communication log; select, from the plurality of contacts, at least one recommended contact for the user; combine the at least one recommended contact with the address list in to a combined list; and display the combined list via the first user account, highlighting the at least one recommended contact to the user.

Abstract: Devices, terminals and methods are provided for contacts management. For example, one or more first contacts included in a communication log are received, wherein the communication log includes a call log or an SMS log; contact frequencies of the first contacts are calculated based on at least information associated with the communication log; one or more second contacts are selected to be managed from the first contacts based on at least information associated with the contact frequencies; if the second contacts exist in an address book is determined; and in response to the second contacts existing in the address book, the second contacts in the address book are extracted as frequent contacts; and a list of frequent contacts are generated based on at least information associated with the frequent contacts.

Abstract: Method and server system for user login verification are disclosed. The method includes: obtaining a verification request from a first device for an account operation requested by a user using a first account; identifying, from the server system, usage history data associated with the first account, including data regarding usage of the first account on the first device; determining, in accordance with the data regarding the usage of the first account on the first device and one or more predetermined usage history criteria, whether the account operation associated with the first account on the first device is safe; and in accordance with a determination that the account operation associated with the first account on the first device is not safe, initiating a verification process based on a second device that qualifies as being safe for the account operation.

Abstract: A device may include a storage medium and a processor. The processor may execute a set of instructions in the storage medium to: provide a first platform; provide a first user account registered in the first platform to a user; access, through the first user account, a second user account of the user registered in a second platform; obtain, from the second user account, a communication log of the second user account; obtain an address list from the second user account; obtain a plurality of contacts from the second user account who have a prior communication with the user through the second user account based on the communication log; select, from the plurality of contacts, at least one recommended contact for the user; combine the at least one recommended contact with the address list in to a combined list; and display the combined list via the first user account, highlighting the at least one recommended contact to the user.

Abstract: Devices, terminals and methods are provided for contacts management. For example, one or more first contacts included in a communication log are received, wherein the communication log includes a call log or an SMS log; contact frequencies of the first contacts are calculated based on at least information associated with the communication log; one or more second contacts are selected to be managed from the first contacts based on at least information associated with the contact frequencies; if the second contacts exist in an address book is determined; and in response to the second contacts existing in the address book, the second contacts in the address book are extracted as frequent contacts; and a list of frequent contacts are generated based on at least information associated with the frequent contacts.

Abstract: A method and a device are provided for inputting account information in the field of Internet communications. The method includes: obtaining user account information included in a first application; obtaining an information type of a form element included in a form of a second application; determining account information corresponding to the form element according to the information type of the form element and the user account information; and automatically inputting the account information corresponding to the form element to the form element. The device includes a processor and a non-transitory storage medium, which includes: a first obtaining module, a second obtaining module, a determining module, and an inputting module.